body,div{margin: 0;padding: 0;}
.wrapper{
	background-color: #CCC;
	margin-left: auto;
	margin-right: auto;
	position: relative;
	top: 40px;
	overflow: hidden;
}
.ball{
	border-radius: 10px;
	background-color: black;
	position: absolute;
}
.platform{
	background-color: darkred;
	position: absolute;
}

